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author | Danila Shutov <dcbrwn2@gmail.com> | 2020-02-16 22:37:28 +0300 |
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committer | GitHub <noreply@github.com> | 2020-02-16 20:37:28 +0100 |
commit | 6958071f497c8f059429343339ad3818ed3cfed1 (patch) | |
tree | 9e38865425f8c0589b695935e13009070778719b /client/shaders/object_shader/opengl_vertex.glsl | |
parent | 478e7532985320c5ddacc0280f77b67956715a65 (diff) | |
download | minetest-6958071f497c8f059429343339ad3818ed3cfed1.tar.gz minetest-6958071f497c8f059429343339ad3818ed3cfed1.tar.bz2 minetest-6958071f497c8f059429343339ad3818ed3cfed1.zip |
Basic model shading (#9374)
Diffstat (limited to 'client/shaders/object_shader/opengl_vertex.glsl')
-rw-r--r-- | client/shaders/object_shader/opengl_vertex.glsl | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/client/shaders/object_shader/opengl_vertex.glsl b/client/shaders/object_shader/opengl_vertex.glsl new file mode 100644 index 000000000..99b9b2709 --- /dev/null +++ b/client/shaders/object_shader/opengl_vertex.glsl @@ -0,0 +1,44 @@ +uniform mat4 mWorldViewProj; +uniform mat4 mWorld; + +uniform vec3 eyePosition; +uniform float animationTimer; + +varying vec3 vNormal; +varying vec3 vPosition; +varying vec3 worldPosition; + +varying vec3 eyeVec; +varying vec3 lightVec; +varying float vIDiff; + +const float e = 2.718281828459; +const float BS = 10.0; + +float directional_ambient(vec3 normal) +{ + vec3 v = normal * normal; + + if (normal.y < 0) + return dot(v, vec3(0.670820f, 0.447213f, 0.836660f)); + + return dot(v, vec3(0.670820f, 1.000000f, 0.836660f)); +} + +void main(void) +{ + gl_TexCoord[0] = gl_MultiTexCoord0; + gl_Position = mWorldViewProj * gl_Vertex; + + vPosition = gl_Position.xyz; + vNormal = gl_Normal; + worldPosition = (mWorld * gl_Vertex).xyz; + + vec3 sunPosition = vec3 (0.0, eyePosition.y * BS + 900.0, 0.0); + + lightVec = sunPosition - worldPosition; + eyeVec = -(gl_ModelViewMatrix * gl_Vertex).xyz; + vIDiff = directional_ambient(normalize(gl_Normal)); + + gl_FrontColor = gl_BackColor = gl_Color; +} |