josh/JoshsOpenGLTest
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revert to regular shader

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This commit is contained in:
Josh Holtrop 2012-12-01 08:10:13 -05:00
parent 490f8973d2
commit 2ddae706eb
3 changed files with 18 additions and 13 deletions
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4
assets/shaders/fragment.glsl
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@ -1,7 +1,7 @@
varying vec2 pos_2d_i;
varying vec3 color_i;
void main()
{
gl_FragColor = vec4(0, 0.3, 1, 1);
gl_FragColor = vec4(color_i, 1);
}

8
assets/shaders/vertex.glsl
View File

@ -4,12 +4,12 @@ uniform mat4 modelview;
uniform vec2 offset;
attribute vec2 pos;
attribute vec3 color;
varying vec2 pos_2d_i;
varying vec3 color_i;
void main()
{
gl_Position = projection *
(modelview * vec4(pos, 0, 1) + vec4(offset, 0, 0));
pos_2d_i = pos + offset;
gl_Position = projection * modelview * vec4(pos, 0, 1);
color_i = color;
}

19
src/com/homelinux/holtrop/opengltest/MyRenderer.java
View File

@ -93,10 +93,10 @@ public class MyRenderer implements GLSurfaceView.Renderer
public void onSurfaceCreated(GL10 unused, EGLConfig config)
{
final float attribs[] = {
1, 1,
0, 1,
0, 0,
1, 0
1, 1, 0.8f, 0.8f, 1,
0, 1, 0, 0, 1,
0, 0, 0.8f, 0.8f, 1,
1, 0, 0, 0, 1
};
checkGLError("onSurfaceCreated");
ByteBuffer bb = ByteBuffer.allocateDirect(attribs.length * 4);
@ -150,13 +150,19 @@ public class MyRenderer implements GLSurfaceView.Renderer
GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
int attr_pos = GLES20.glGetAttribLocation(m_program, "pos");
int attr_color = GLES20.glGetAttribLocation(m_program, "color");
checkGLError("glGetAttribLocation");
GLES20.glEnableVertexAttribArray(attr_pos);
GLES20.glEnableVertexAttribArray(attr_color);
checkGLError("glEnableVertexAttribArray");
m_quad_attrib_buffer.position(0);
GLES20.glVertexAttribPointer(attr_pos, 2, GLES20.GL_FLOAT, false,
2 * 4, m_quad_attrib_buffer);
5 * 4, m_quad_attrib_buffer);
m_quad_attrib_buffer.position(2);
GLES20.glVertexAttribPointer(attr_color, 3, GLES20.GL_FLOAT, false,
5 * 4, m_quad_attrib_buffer);
checkGLError("glVertexAttribPointer");
for (int y = 0; y < GRID_HEIGHT; y++)
@ -166,18 +172,17 @@ public class MyRenderer implements GLSurfaceView.Renderer
Matrix.setIdentityM(m_modelview, 0);
Matrix.translateM(m_modelview, 0,
x - GRID_WIDTH / 2.0f, y - GRID_HEIGHT / 2.0f, 0);
Matrix.scaleM(m_modelview, 0, 0.9f, 0.9f, 0.9f);
GLES20.glUniformMatrix4fv(
GLES20.glGetUniformLocation(m_program, "modelview"),
1, false, m_modelview, 0);
m_quad_attrib_buffer.position(0);
GLES20.glDrawArrays(GLES20.GL_TRIANGLE_FAN, 0, 4);
checkGLError("glDrawArrays");
}
}
GLES20.glDisableVertexAttribArray(attr_pos);
GLES20.glDisableVertexAttribArray(attr_color);
checkGLError("glDisableVertexAttribArray");
}