1 | //--------------------------------------------------------------------------- |
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2 | //These materials/shaders are part of the NEW InstanceManager implementation |
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3 | //Written by Matias N. Goldberg ("dark_sylinc") |
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4 | //--------------------------------------------------------------------------- |
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5 | |
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6 | #version 150 |
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7 | |
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8 | uniform sampler2D diffuseMap; |
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9 | |
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10 | uniform vec4 lightPosition; |
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11 | uniform vec3 cameraPosition; |
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12 | uniform vec3 lightAmbient; |
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13 | uniform vec3 lightDiffuse; |
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14 | uniform vec3 lightSpecular; |
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15 | uniform vec4 lightAttenuation; |
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16 | uniform float lightGloss; |
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17 | |
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18 | #if DEPTH_SHADOWRECEIVER |
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19 | uniform float invShadowMapSize; |
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20 | uniform sampler2DShadow shadowMap; |
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21 | |
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22 | //declare external function |
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23 | //vec4 calcDepthShadow(in vec4 inColour, in float lum); |
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24 | float calcDepthShadow(sampler2DShadow shadowMap, vec4 uv, float invShadowMapSize); |
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25 | #endif |
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26 | |
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27 | in vec2 _uv0; |
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28 | in vec3 oNormal; |
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29 | in vec3 oVPos; |
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30 | #if DEPTH_SHADOWRECEIVER |
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31 | in vec4 oLightSpacePos; |
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32 | #endif |
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33 | out vec4 fragColour; |
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34 | |
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35 | //--------------------------------------------- |
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36 | //Main Pixel Shader |
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37 | //--------------------------------------------- |
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38 | void main(void) |
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39 | { |
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40 | vec4 color = texture( diffuseMap, _uv0 ); |
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41 | |
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42 | float fShadow = 1.0; |
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43 | #if DEPTH_SHADOWRECEIVER |
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44 | fShadow = calcDepthShadow( shadowMap, oLightSpacePos, invShadowMapSize ); |
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45 | #endif |
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46 | |
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47 | vec4 baseColour = texture( diffuseMap, _uv0 ); |
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48 | |
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49 | //Blinn-Phong lighting |
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50 | vec3 normal = normalize( oNormal ); |
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51 | vec3 lightDir = lightPosition.xyz - oVPos * lightPosition.w; |
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52 | vec3 eyeDir = normalize( cameraPosition - oVPos ); |
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53 | |
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54 | float fLength = length( lightDir ); |
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55 | lightDir = normalize( lightDir ); |
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56 | |
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57 | float NdotL = max( 0.0, dot( normal, lightDir ) ); |
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58 | vec3 halfVector = normalize(lightDir + eyeDir); |
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59 | float HdotN = max( 0.0, dot( halfVector, normal ) ); |
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60 | |
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61 | vec3 ambient = lightAmbient * baseColour.xyz; |
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62 | vec3 diffuse = lightDiffuse * NdotL * baseColour.xyz; |
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63 | vec3 specular = lightSpecular * pow( HdotN, lightGloss ); |
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64 | |
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65 | vec3 directLighting = (diffuse + specular) * fShadow; |
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66 | |
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67 | fragColour = vec4( directLighting + ambient, baseColour.a ); |
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68 | //fragColour = baseColour; |
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69 | } |
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