diff options
author | Tomi Korpipää <tomi.korpipaa@digia.com> | 2013-09-10 11:42:13 +0300 |
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committer | Tomi Korpipää <tomi.korpipaa@digia.com> | 2013-09-10 12:04:24 +0300 |
commit | a28cdb72a4ea768a898ca07f0df0fa3c17c073a8 (patch) | |
tree | 0bafdcfa99fc783e9f5204539a8242bf6128d795 /src/datavisualization/engine/shaders/texture_ES2.frag | |
parent | f3e38983d77c72f3121c33a149a58fdf9c64158c (diff) |
Module renamed
Task-number: QTRD-2224
Change-Id: Iec18b6121809300b11d85445281d3c626c434f35
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
Diffstat (limited to 'src/datavisualization/engine/shaders/texture_ES2.frag')
-rw-r--r-- | src/datavisualization/engine/shaders/texture_ES2.frag | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/datavisualization/engine/shaders/texture_ES2.frag b/src/datavisualization/engine/shaders/texture_ES2.frag new file mode 100644 index 00000000..58097ba5 --- /dev/null +++ b/src/datavisualization/engine/shaders/texture_ES2.frag @@ -0,0 +1,37 @@ +uniform highp vec3 lightPosition_wrld; +uniform highp vec3 color_mdl; +uniform highp float lightStrength; +uniform highp float ambientStrength; +uniform sampler2D textureSampler; + +varying highp vec2 UV; +varying highp vec3 position_wrld; +varying highp vec3 normal_cmr; +varying highp vec3 eyeDirection_cmr; +varying highp vec3 lightDirection_cmr; + +void main() { + highp vec3 materialDiffuseColor = texture2D(textureSampler, UV).rgb; + highp vec3 materialAmbientColor = vec3(ambientStrength, ambientStrength, ambientStrength) * materialDiffuseColor; + highp vec3 materialSpecularColor = vec3(1.0, 1.0, 1.0); + + highp float distance = length(lightPosition_wrld - position_wrld); + highp vec3 n = normalize(normal_cmr); + highp vec3 l = normalize(lightDirection_cmr); + highp float cosTheta = dot(n, l); + if (cosTheta < 0.0) cosTheta = 0.0; + else if (cosTheta > 1.0) cosTheta = 1.0; + + highp vec3 E = normalize(eyeDirection_cmr); + highp vec3 R = reflect(-l, n); + highp float cosAlpha = dot(E, R); + if (cosAlpha < 0.0) cosAlpha = 0.0; + else if (cosAlpha > 1.0) cosAlpha = 1.0; + + gl_FragColor.rgb = + materialAmbientColor + + materialDiffuseColor * lightStrength * (cosTheta * cosTheta) / distance + + materialSpecularColor * lightStrength * (cosAlpha * cosAlpha * cosAlpha * cosAlpha * cosAlpha) / distance; + gl_FragColor.a = texture2D(textureSampler, UV).a; +} + |