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New Mesh Shader

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This commit is contained in:
Richard Davey 2020-09-18 17:51:23 +01:00
parent 9a1b252a11
commit 307cbe130f
4 changed files with 142 additions and 0 deletions
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45
src/renderer/webgl/shaders/Mesh-frag.js Normal file
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module.exports = [
'#define SHADER_NAME PHASER_MESH_FS',
'',
'precision mediump float;',
'',
'uniform vec3 uLightPosition;',
'uniform vec3 uLightAmbient;',
'uniform vec3 uLightDiffuse;',
'uniform vec3 uLightSpecular;',
'',
'uniform vec3 uMaterialAmbient;',
'uniform vec3 uMaterialDiffuse;',
'uniform vec3 uMaterialSpecular;',
'uniform float uMaterialShine;',
'',
'uniform vec3 uCameraPosition;',
'',
'uniform sampler2D uTexture;',
'',
'varying vec2 vTextureCoord;',
'varying vec3 vNormal;',
'varying vec3 vPosition;',
'',
'void main (void)',
'{',
' vec4 color = texture2D(uTexture, vTextureCoord);',
'',
' vec3 ambient = uLightAmbient * uMaterialAmbient;',
'',
' vec3 norm = normalize(vNormal);',
' vec3 lightDir = normalize(uLightPosition - vPosition);',
' float diff = max(dot(norm, lightDir), 0.0);',
' vec3 diffuse = uLightDiffuse * (diff * uMaterialDiffuse);',
'',
' vec3 viewDir = normalize(uCameraPosition - vPosition);',
' vec3 reflectDir = reflect(-lightDir, norm);',
' float spec = pow(max(dot(viewDir, reflectDir), 0.0), uMaterialShine);',
' vec3 specular = uLightSpecular * (spec * uMaterialSpecular);',
'',
' vec3 result = (ambient + diffuse + specular) * color.rgb;',
'',
' gl_FragColor = vec4(result, color.a);',
'}',
''
].join('\n');

29
src/renderer/webgl/shaders/Mesh-vert.js Normal file
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module.exports = [
'#define SHADER_NAME PHASER_MESH_VS',
'',
'precision mediump float;',
'',
'attribute vec3 aVertexPosition;',
'attribute vec3 aVertexNormal;',
'attribute vec2 aTextureCoord;',
'',
'uniform mat4 uViewProjectionMatrix;',
'uniform mat4 uModelMatrix;',
'uniform mat4 uNormalMatrix;',
'',
'varying vec2 vTextureCoord;',
'varying vec3 vNormal;',
'varying vec3 vPosition;',
'',
'void main ()',
'{',
' vTextureCoord = aTextureCoord;',
'',
' vPosition = vec3(uModelMatrix * vec4(aVertexPosition, 1.0));',
'',
' vNormal = vec3(uNormalMatrix * vec4(aVertexNormal, 1.0));',
'',
' gl_Position = uViewProjectionMatrix * uModelMatrix * vec4(aVertexPosition, 1.0);',
'}',
''
].join('\n');

42
src/renderer/webgl/shaders/src/Mesh.frag Normal file
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#define SHADER_NAME PHASER_MESH_FS
precision mediump float;
uniform vec3 uLightPosition;
uniform vec3 uLightAmbient;
uniform vec3 uLightDiffuse;
uniform vec3 uLightSpecular;
uniform vec3 uMaterialAmbient;
uniform vec3 uMaterialDiffuse;
uniform vec3 uMaterialSpecular;
uniform float uMaterialShine;
uniform vec3 uCameraPosition;
uniform sampler2D uTexture;
varying vec2 vTextureCoord;
varying vec3 vNormal;
varying vec3 vPosition;
void main (void)
{
vec4 color = texture2D(uTexture, vTextureCoord);
vec3 ambient = uLightAmbient * uMaterialAmbient;
vec3 norm = normalize(vNormal);
vec3 lightDir = normalize(uLightPosition - vPosition);
float diff = max(dot(norm, lightDir), 0.0);
vec3 diffuse = uLightDiffuse * (diff * uMaterialDiffuse);
vec3 viewDir = normalize(uCameraPosition - vPosition);
vec3 reflectDir = reflect(-lightDir, norm);
float spec = pow(max(dot(viewDir, reflectDir), 0.0), uMaterialShine);
vec3 specular = uLightSpecular * (spec * uMaterialSpecular);
vec3 result = (ambient + diffuse + specular) * color.rgb;
gl_FragColor = vec4(result, color.a);
}

26
src/renderer/webgl/shaders/src/Mesh.vert Normal file
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#define SHADER_NAME PHASER_MESH_VS
precision mediump float;
attribute vec3 aVertexPosition;
attribute vec3 aVertexNormal;
attribute vec2 aTextureCoord;
uniform mat4 uViewProjectionMatrix;
uniform mat4 uModelMatrix;
uniform mat4 uNormalMatrix;
varying vec2 vTextureCoord;
varying vec3 vNormal;
varying vec3 vPosition;
void main ()
{
vTextureCoord = aTextureCoord;
vPosition = vec3(uModelMatrix * vec4(aVertexPosition, 1.0));
vNormal = vec3(uNormalMatrix * vec4(aVertexNormal, 1.0));
gl_Position = uViewProjectionMatrix * uModelMatrix * vec4(aVertexPosition, 1.0);
}