#include "gl.h"#include "glext.h"#include "shadermanager.h"#include <iostream>#include <fstream>#include <iomanip>#include <cstdio>#include <cassert>Include dependency graph for shadermanager.cpp:
Go to the source code of this file.
Functions | |
| static string | BeginLightSourceShadows (const ShaderProperties &props, unsigned int light) |
| static string | DeclareLights (const ShaderProperties &props) |
| static string | DirectionalLight (unsigned int i, const ShaderProperties &props) |
| static void | DumpShaderSource (ostream &out, const std::string &source) |
| static string | FragLightProperty (unsigned int i, char *property) |
| ShaderManager & | GetShaderManager () |
| static string | IndexedParameter (const char *name, unsigned int index0, unsigned int index1) |
| static string | IndexedParameter (const char *name, unsigned int index) |
| static string | LightDir (unsigned int i) |
| static string | LightProperty (unsigned int i, char *property) |
| bool | operator< (const ShaderProperties &p0, const ShaderProperties &p1) |
| static string | RingShadowTexCoord (unsigned int index) |
| static string | SeparateDiffuse (unsigned int i) |
| static string | SeparateSpecular (unsigned int i) |
| static string | Shadow (unsigned int light, unsigned int shadow) |
| static string | ShadowsForLightSource (const ShaderProperties &props, unsigned int light) |
| static string | TexCoord2D (unsigned int i) |
Variables | |
| static const char * | errorFragmentShaderSource |
| static const char * | errorVertexShaderSource |
| ShaderManager | g_ShaderManager |
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Definition at line 496 of file shadermanager.cpp. References RingShadowTexCoord(), and SeparateDiffuse(). Referenced by ShadowsForLightSource(). 00497 {
00498 string source;
00499
00500 if (props.usesFragmentLighting())
00501 {
00502 if (props.hasShadowsForLight(light))
00503 source += "shadow = 1.0;\n";
00504 }
00505 else
00506 {
00507 source += "shadow = " + SeparateDiffuse(light) + ";\n";
00508 }
00509
00510 if (props.texUsage & ShaderProperties::RingShadowTexture)
00511 {
00512 source += "shadow *= (1.0 - texture2D(ringTex, vec2(" +
00513 RingShadowTexCoord(light) + ", 0.0)).a);\n";
00514 }
00515
00516 return source;
00517 }
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Definition at line 363 of file shadermanager.cpp. Referenced by ShaderManager::buildRingsVertexShader(), and ShaderManager::buildVertexShader(). 00364 {
00365 if (props.nLights == 0)
00366 return string("");
00367
00368 char lightSourceBuf[128];
00369
00370 #ifndef USE_GLSL_STRUCTS
00371 string lightSourceDecl;
00372
00373 for (unsigned int i = 0; i < props.nLights; i++)
00374 {
00375 sprintf(lightSourceBuf,
00376 "uniform vec3 light%d_direction;\n"
00377 "uniform vec3 light%d_diffuse;\n"
00378 "uniform vec3 light%d_specular;\n"
00379 "uniform vec3 light%d_halfVector;\n",
00380 i, i, i, i);
00381 lightSourceDecl += string(lightSourceBuf);
00382 }
00383
00384 return lightSourceDecl;
00385 #else
00386 sprintf(lightSourceBuf,
00387 "uniform struct {\n"
00388 " vec3 direction;\n"
00389 " vec3 diffuse;\n"
00390 " vec3 specular;\n"
00391 " vec3 halfVector;\n"
00392 "} lights[%d];\n",
00393 props.nLights);
00394
00395 return string(lightSourceBuf);
00396 #endif
00397 }
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Definition at line 442 of file shadermanager.cpp. References LightProperty(), SeparateDiffuse(), and SeparateSpecular(). Referenced by ShaderManager::buildVertexShader(). 00443 {
00444 string source;
00445
00446 source += "nDotVP = max(0.0, dot(gl_Normal, " +
00447 LightProperty(i, "direction") + "));\n";
00448 if (props.lightModel == ShaderProperties::SpecularModel)
00449 {
00450 source += "nDotHV = max(0.0, dot(gl_Normal, " +
00451 LightProperty(i, "halfVector") + "));\n";
00452 }
00453
00454 if (props.usesFragmentLighting())
00455 {
00456 // Diffuse is computed in the fragment shader when fragment lighting
00457 // is enabled.
00458 }
00459 else if (props.usesShadows())
00460 {
00461 // When there are shadows, we need to track the diffuse contributions
00462 // separately for each light.
00463 source += SeparateDiffuse(i) + " = nDotVP;\n";
00464 }
00465 else
00466 {
00467 // Sum the diffuse contribution from all lights
00468 source += "diff.rgb += " + LightProperty(i, "diffuse") + " * nDotVP;\n";
00469 }
00470
00471 if (props.lightModel == ShaderProperties::SpecularModel)
00472 {
00473 if (props.usesShadows())
00474 {
00475 source += SeparateSpecular(i) +
00476 " = pow(nDotHV, shininess);\n";
00477 }
00478 else
00479 {
00480 source += "spec.rgb += " + LightProperty(i, "specular") +
00481 " * (pow(nDotHV, shininess) * nDotVP);\n";
00482 }
00483 }
00484
00485 if (props.texUsage & ShaderProperties::NightTexture)
00486 {
00487 source += "totalLight += nDotVP;\n";
00488 }
00489
00490
00491 return source;
00492 }
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Definition at line 339 of file shadermanager.cpp. Referenced by ShaderManager::buildFragmentShader(), ShaderManager::buildRingsFragmentShader(), ShaderManager::buildRingsVertexShader(), and ShaderManager::buildVertexShader(). 00340 {
00341 bool newline = true;
00342 unsigned int lineNumber = 0;
00343
00344 for (unsigned int i = 0; i < source.length(); i++)
00345 {
00346 if (newline)
00347 {
00348 lineNumber++;
00349 out << setw(3) << lineNumber << ": ";
00350 newline = false;
00351 }
00352
00353 out << source[i];
00354 if (source[i] == '\n')
00355 newline = true;
00356 }
00357
00358 out.flush();
00359 }
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Definition at line 210 of file shadermanager.cpp. Referenced by ShaderManager::buildFragmentShader(), ShaderManager::buildRingsFragmentShader(), and CelestiaGLProgram::initParameters(). 00211 {
00212 char buf[64];
00213 sprintf(buf, "light%s%d", property, i);
00214 return string(buf);
00215 }
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Definition at line 38 of file shadermanager.cpp. References g_ShaderManager. Referenced by GLSL_RenderContext::makeCurrent(), renderClouds_GLSL(), renderRings_GLSL(), and renderSphere_GLSL(). 00039 {
00040 return g_ShaderManager;
00041 }
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Definition at line 228 of file shadermanager.cpp. 00229 {
00230 char buf[64];
00231 sprintf(buf, "%s%d_%d", name, index0, index1);
00232 return string(buf);
00233 }
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Definition at line 219 of file shadermanager.cpp. Referenced by ShaderManager::buildFragmentShader(), ShaderManager::buildRingsFragmentShader(), ShaderManager::buildRingsVertexShader(), ShaderManager::buildVertexShader(), CelestiaGLProgram::initParameters(), and Shadow(). 00220 {
00221 char buf[64];
00222 sprintf(buf, "%s%d", name, index);
00223 return string(buf);
00224 }
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Definition at line 433 of file shadermanager.cpp. Referenced by ShaderManager::buildFragmentShader(), and ShaderManager::buildVertexShader(). 00434 {
00435 char buf[32];
00436 sprintf(buf, "lightDir%d", i);
00437 return string(buf);
00438 }
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Definition at line 196 of file shadermanager.cpp. Referenced by ShaderManager::buildRingsVertexShader(), ShaderManager::buildVertexShader(), DirectionalLight(), and CelestiaGLProgram::initParameters(). 00197 {
00198 char buf[64];
00199
00200 #ifndef USE_GLSL_STRUCTS
00201 sprintf(buf, "light%d_%s", i, property);
00202 #else
00203 sprintf(buf, "lights[%d].%s", i, property);
00204 #endif
00205 return string(buf);
00206 }
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Definition at line 102 of file shadermanager.cpp. 00103 {
00104 if (p0.texUsage < p1.texUsage)
00105 return true;
00106 else if (p1.texUsage < p0.texUsage)
00107 return false;
00108
00109 if (p0.nLights < p1.nLights)
00110 return true;
00111 else if (p1.nLights < p0.nLights)
00112 return false;
00113
00114 if (p0.shadowCounts < p1.shadowCounts)
00115 return true;
00116 else if (p1.shadowCounts < p0.shadowCounts)
00117 return false;
00118
00119 return (p0.lightModel < p1.lightModel);
00120 }
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Definition at line 237 of file shadermanager.cpp. Referenced by BeginLightSourceShadows(), and ShaderManager::buildVertexShader(). 00238 {
00239 char buf[64];
00240 sprintf(buf, "ringShadowTexCoord.%c", "xyzw"[index]);
00241 return string(buf);
00242 }
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Definition at line 401 of file shadermanager.cpp. Referenced by BeginLightSourceShadows(), ShaderManager::buildRingsFragmentShader(), ShaderManager::buildRingsVertexShader(), and DirectionalLight(). 00402 {
00403 // Used for packing multiple diffuse factors into the diffuse color.
00404 // It's probably better to use separate float interpolants. I'll switch
00405 // to this once I verify that shader compilers are smart enough to pack
00406 // multiple scalars into a single vector interpolant.
00407 char buf[32];
00408 sprintf(buf, "diffFactors.%c", "xyzw"[i & 3]);
00409 return string(buf);
00410 }
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Definition at line 414 of file shadermanager.cpp. Referenced by ShaderManager::buildFragmentShader(), and DirectionalLight(). 00415 {
00416 // Used for packing multiple specular factors into the specular color.
00417 char buf[32];
00418 sprintf(buf, "specFactors.%c", "xyzw"[i & 3]);
00419 return string(buf);
00420 }
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Definition at line 521 of file shadermanager.cpp. References IndexedParameter(). Referenced by ShaderManager::buildRingsFragmentShader(), and ShadowsForLightSource(). 00522 {
00523 string source;
00524
00525 source += "shadowCenter = " +
00526 IndexedParameter("shadowTexCoord", light, shadow) +
00527 ".st - vec2(0.5, 0.5);\n";
00528 source += "shadowR = clamp(dot(shadowCenter, shadowCenter) * " +
00529 IndexedParameter("shadowScale", light, shadow) + " + " +
00530 IndexedParameter("shadowBias", light, shadow) + ", 0.0, 1.0);\n";
00531 source += "shadow *= sqrt(shadowR);\n";
00532
00533 return source;
00534 }
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Definition at line 538 of file shadermanager.cpp. References BeginLightSourceShadows(), and Shadow(). Referenced by ShaderManager::buildFragmentShader(). 00539 {
00540 string source = BeginLightSourceShadows(props, light);
00541
00542 for (unsigned int i = 0; i < props.getShadowCountForLight(light); i++)
00543 source += Shadow(light, i);
00544
00545 return source;
00546 }
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Definition at line 424 of file shadermanager.cpp. Referenced by ShaderManager::buildRingsVertexShader(), and ShaderManager::buildVertexShader(). 00425 {
00426 char buf[64];
00427 sprintf(buf, "gl_MultiTexCoord%d.st", i);
00428 return string(buf);
00429 }
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Initial value:
"void main(void) {\n"
" gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n"
Definition at line 31 of file shadermanager.cpp. Referenced by ShaderManager::buildProgram(). |
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Initial value:
"void main(void) {\n"
" gl_Position = ftransform();\n"
"}\n"
Definition at line 27 of file shadermanager.cpp. Referenced by ShaderManager::buildProgram(). |
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Definition at line 24 of file shadermanager.cpp. Referenced by GetShaderManager(). |
1.4.1