Attachment 38501 Details for Bug 30030 – landmass "g" vertex shader

landmass "g" vertex shader

landmass-g.vert (text/plain), 1.64 KB, created by Magnus Kessler on 2010-09-06 23:30:54 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Magnus Kessler

Created: 2010-09-06 23:30:54 UTC

Size: 1.64 KB

patch

obsolete

>#version 120
>
>// "landmass" effect with forest construction using a geometry
>// shader. The landmass effect includes a bumpmap effect as well as
>// variation by altitude.
>//
>// The fragment shader needs position and normals in model and eye
>// coordinates. This vertex shader calculates the positions and
>// normals of the forest polygons so the geometry shader can do as
>// little as possible.
>
>// Input for the geometry shader. "raw" means terrain model
>// coordinates; that's a tile-local coordinate system, with z as local
>// up. "ec" means eye coordinates.
>
>// model position of original terrain poly; the bottom of the forest.
>varying vec4 rawposIn;
>// model normal
>varying vec3 NormalIn;
>varying vec4 ecPosIn;
>varying vec3 ecNormalIn;
>// eye spacce tangent and binormal
>varying vec3 VTangentIn;
>varying vec3 VBinormalIn;
>// screen-space position of top
>// constant color component
>varying vec4 constantColorIn;
>
>attribute vec3 tangent;
>attribute vec3 binormal;
>
>uniform float canopy_height;
>
>void main(void)
>{
>        rawposIn = gl_Vertex;
>	ecPosIn = gl_ModelViewMatrix * gl_Vertex;
>	NormalIn = normalize(gl_Normal);
>        //rawTopIn = rawposIn + vec4(0.0, 0.0, canopy_height, 0.0);
>        //ecTopIn = gl_ModelViewMatrix * rawTopIn;
>        ecNormalIn = gl_NormalMatrix * NormalIn;
>	VTangentIn = gl_NormalMatrix * tangent;
>	VBinormalIn = gl_NormalMatrix * binormal;
>
>	gl_FrontColor = gl_Color;
>	gl_Position = ftransform();
>        //positionTopIn = gl_ModelViewProjectionMatrix * rawTopIn;
>	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
>        constantColorIn = gl_FrontMaterial.emission
>		+ gl_Color * (gl_LightModel.ambient + gl_LightSource[0].ambient);  
>}

Actions: View

Attachments on bug 30030: 38500 | 38501 | 38502 | 38503

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.