Example usage for org.lwjgl.opengl GL20 GL_POINT_SPRITE

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL20 GL_POINT_SPRITE.

Prototype

int GL_POINT_SPRITE

To view the source code for org.lwjgl.opengl GL20 GL_POINT_SPRITE.

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Document

Accepted by the cap parameter of Enable, Disable, and IsEnabled, by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev, and by the target parameter of TexEnvi, TexEnviv, TexEnvf, TexEnvfv, GetTexEnviv, and GetTexEnvfv.

Usage

From source file:com.opengrave.og.base.RenderableParticles.java

License:Open Source License

@Override
public void render(Matrix4f matrix, RenderStyle style) {
    dealWithChange();/* w ww . ja va 2s  .c om*/
    if (matList == null || !matList.valid()) {
        return;
    }
    GL30.glBindVertexArray(idVao);
    int pID = Resources.loadShader("particle.vs", "particle.fs").getProgram();
    GL20.glUseProgram(pID);
    GL20.glEnableVertexAttribArray(0);
    GL20.glEnableVertexAttribArray(1);
    GL20.glEnableVertexAttribArray(2);
    GL20.glBindAttribLocation(pID, 0, "in_Position");
    GL20.glBindAttribLocation(pID, 1, "in_Colour");
    GL20.glBindAttribLocation(pID, 2, "in_Scale");
    Util.checkErr();
    int texture = GL20.glGetUniformLocation(pID, "tex");
    GL20.glUniform1i(texture, 0);
    int wSS = GL20.glGetUniformLocation(pID, "windowSizeScale");

    GL20.glUniform1f(wSS, getContext().width / 1024f);
    getContext().setMatrices(pID, matrix);
    if (matList != null && matList.valid()) {
        matList.bind(pID, GL13.GL_TEXTURE0);
    }
    GL11.glEnable(GL20.GL_POINT_SPRITE);
    GL11.glEnable(GL20.GL_VERTEX_PROGRAM_POINT_SIZE);
    GL11.glDepthMask(false);
    GL11.glDrawArrays(GL11.GL_POINTS, 0, size);
    GL11.glDepthMask(true);
    GL11.glDisable(GL20.GL_POINT_SPRITE);
    GL11.glDisable(GL20.GL_VERTEX_PROGRAM_POINT_SIZE);

    if (matList != null && matList.valid()) {
        matList.unbind();
    }
    Util.checkErr();

    GL20.glDisableVertexAttribArray(0);
    GL20.glDisableVertexAttribArray(1);
    GL20.glDisableVertexAttribArray(2);

    Util.checkErr();

    GL20.glUseProgram(0);
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
    GL30.glBindVertexArray(0);
    Util.checkErr();
}

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From source file:com.opengrave.og.base.RenderableParticles.java

License:Open Source License

@Override
public void renderForPicking(Matrix4f matrix, Pickable object) {
    dealWithChange();//from   w  w w .  ja v  a2  s .com
    GL30.glBindVertexArray(idVao);
    int pID = Resources.loadShader("particle.vs", "pickingmodel.fs").getProgram();
    GL20.glUseProgram(pID);
    GL20.glEnableVertexAttribArray(0);
    GL20.glEnableVertexAttribArray(2);
    GL20.glBindAttribLocation(pID, 0, "in_Position");
    GL20.glBindAttribLocation(pID, 2, "in_Scale");
    Util.checkErr();

    int wSS = GL20.glGetUniformLocation(pID, "windowSizeScale");

    GL20.glUniform1f(wSS, MainThread.lastW / 1024f);
    getContext().setMatrices(pID, matrix);
    GL11.glEnable(GL20.GL_POINT_SPRITE);
    GL11.glEnable(GL20.GL_VERTEX_PROGRAM_POINT_SIZE);
    Picking.registerObject(pID, getContext(), object);
    GL11.glDrawArrays(GL11.GL_POINTS, 0, size);
    GL11.glDisable(GL20.GL_POINT_SPRITE);
    GL11.glDisable(GL20.GL_VERTEX_PROGRAM_POINT_SIZE);

    Util.checkErr();

    GL20.glDisableVertexAttribArray(0);
    GL20.glDisableVertexAttribArray(2);

    Util.checkErr();

    GL20.glUseProgram(0);
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
    GL30.glBindVertexArray(0);
    Util.checkErr();
}

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From source file:com.opengrave.og.base.RenderablePoints.java

License:Open Source License

@Override
public void render(Matrix4f matrix, RenderStyle style) {
    Util.checkErr();/*ww w . j  a v a2 s  . c o m*/

    dealWithChange();
    if (!visible) {
        return;
    }
    if (vertCount == 0) {
        return;
    }
    Util.checkErr();
    GL11.glDisable(GL11.GL_DEPTH_TEST);
    Util.checkErr();
    GL11.glPointSize(3f);
    Util.checkErr();
    int pID = Resources.loadShader("particle.vs", "particle.fs").getProgram();
    Util.checkErr();
    GL20.glUseProgram(pID);
    Util.checkErr();
    if (pID == 0) {
        return;
    }
    Util.checkErr();
    GL30.glBindVertexArray(vaoID);
    Util.checkErr();
    GL20.glEnableVertexAttribArray(0);
    GL20.glEnableVertexAttribArray(1);
    GL20.glEnableVertexAttribArray(2);

    Util.checkErr();
    int wSS = GL20.glGetUniformLocation(pID, "windowSizeScale");

    GL20.glUniform1f(wSS, MainThread.lastW / 1024f);

    getContext().setMatrices(pID, matrix);
    Util.checkErr();

    if (tex != null) {
        tex.bind(GL13.GL_TEXTURE0);
    }
    GL11.glEnable(GL20.GL_POINT_SPRITE);
    GL11.glEnable(GL20.GL_VERTEX_PROGRAM_POINT_SIZE);
    GL11.glDrawArrays(GL11.GL_POINTS, 0, vertCount);

    GL11.glDisable(GL20.GL_POINT_SPRITE);
    GL11.glDisable(GL20.GL_VERTEX_PROGRAM_POINT_SIZE);
    if (tex != null) {
        tex.unbind();
    }
    Util.checkErr();

    GL20.glDisableVertexAttribArray(0);
    GL20.glDisableVertexAttribArray(1);
    GL20.glDisableVertexAttribArray(2);
    Util.checkErr();

    GL30.glBindVertexArray(0);
    GL20.glUseProgram(0);
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
    GL30.glBindVertexArray(0);
    Util.checkErr();
    GL11.glEnable(GL11.GL_DEPTH_TEST);
}

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